Canada



T. WEBB.

CABLE CUTTING DEVICE.

APPLICATION FILED FEB. 23, 1921.

1,419,789. Patented June 13, 1922.

Anon/4H8 CABLE-CUTTING DEVICE.

Specification of Letters Ifatent. Patented June 13 1922 Applicationfiled February '23, 1921. Serial No. 447,162

T 0 allwhom it may concern:

Be it known that I, THOMAS WEBB, a subject of the King of Great Britain,and a resident of Ladysmith, in the Province of British Columbia andDominion of Canada, have invented certain, new and useful Improvementsin Cable-Cutting Devices, of which the following is a specification.

My invention relates to devices for cutting cables or the like, and thepurpose of my invention is the provision of a device of this characterof extremely simple, durable, and eflicient construction, and one whichis operable to effect asecure gripping of the cable prior to and duringthe cutting operation so as to render the actual cutting operationextremely easy and accurate.- Furthermorc, my invention provides adevice having cutting blades which co-act to effect a shearing cut ofthe cable, thus lessening the strain to which the parts are subjected,

and preventing the rapid dulling of the 'slidably fitted within thechannels of the cutting edges. 1

I will describe one form of cable cutting device embodying my inventionand will then point out the novel features thereof in claims.

In the accompanyingdrawings:

Figure 1 is a view showing in side elevation one form of cutting deviceembodying my invention.-

Figure 2 is a top plan view of the device shown in Figure 1.

Figure 3 is an enlarged detail perspective view of the supporting baseand yoke comprised in the device shown in the preceding views.

Figure 4 is a vertical sectional view of a portion of the device shownin Figure 1.

Figure 5 is an enlarged fragmentary detail perspective view of themovable blade and, supporting therefor.

Figure 6 is a detail perspective view of the presser member embodied inthe device shown in the preceding views.

Figure 7 is a fragmentary detail view partly in section showing aportion of the operating spindle shown in Figure 1.

Similar reference characters refer to similar parts in each of theseveral views.

Referring specifically to the drawing and particularly to Figure 8, Bdesignates a base of rectangular formation upon which is centrallyarranged a stationary jaw J that is adapted to be secured to the baseand is formed integral therewith as shown. This jaw J includes companionlips 15 and two pairs of companion flanges 16 and 16 Secured within thejaw between the lips 16 and 16 are the lower ends of a substantiallyU-shaped frame F, threaded bolts extending through suitable openingsformed in the jaw and frame as shown. The vertical portions of the frameare formed on their confronting faces with longitudinally extendinggrooves as indicated in dash lines in Figure 1, while the intermediateor horizontal portion of the frame is formed with a circular collar 17.

Within the jaw J is ada ted to be secured a stationary cutting blade insuch manner as to engage one of the lips 15 and to thus provide a spacebetween the blade and the other lip 15 for the accommodation of themovable blade. The movable blade is designated at L and is secured in amovable 'aw J having end flanges 18 which are frame F, Connected to theupper edge, of the jaw J, through the medium of a ball and socket jointG, is a'screw threaded spindle S designed for effecting the operation ofthe jaw and consequently vertical movement of the movable blade L. Thespindle S extends looselythrough the collar 17 and is provided at its 11per end with an extension 19 of reduced diameter which is screw threadedto engage the walls of a socket formed in a head H. A pin 20 extendsthrough'the head and extension for securing the head inposition againstdisplacement after it has-been screwed home on the extension. The lowerportion of the head H is provided with a plurality of facets 21 as shownin Figure 1 to permit of the application of a wrench thereto ineffecting a rotation of the spindle S as will be hereinafter described.The upper end of the head H is pointed to provide an anvil 22 and uponwhich the spindle is to be struck in effecting a downward movement ofthe movable blade L.

As illustrated to advantage in Figures 1 and 4, the blades L and L areformed at corresponding points with substantially V- shaped recesses,the edges of which are doubled on one side to provide cutting edges 23and 23 As shownin Figure 4, the double of the cutting edges of one bladeis reversed with respect to the double of the cutting edges of the otherblade so that the several cutting edges properly co-act with each otherin effecting the cutting of a cable.

As shown in Figure '1, a pressing member M is provided whichis formedmedially thereof with a collar 24 that threa dedly en: gages the spindleS, the latter being screwthreaded substantially throughout its entirelength as shown. The opposite'ends of the of the spindle Sverticalmovement is imparted to the member M, the upward movement -of themember-being defined by the horizontal portion of the frame F.

In the operation of the device, the movable bladeL is first elevated topermit the insertion of the cablewithin the recesses of theblades,whereupon the blade-L is lowered into cutting position. Downwardpressure is now exerted upon the movable blade L by rotating the spindleS so as to cause a forward feeding of the presser member M until itengages the horizontal portion of the frame F. Further rotation of thespindle S with the member M in abutting relation to the frame willeffect the downward movement of the spindle and thus causethe blade L tofirmly engage the cable. With the cable securely gripped by the' twoblades, the anvil 22 is now struck with a hammer or other'suitable toolthus driving the movable blade L downwardly to'onc side of thestationary blade L, and causing the cutting edges 23 and se -to coactwhich results in the severing of the cable. It is to be particularlynoted that because of the divergent arrangement'of the cutting edges 23and 23*, a shearing cut of the cable is effected which naturallyproduces a sharp and clean cutting of the cable and without appreciablydulling the cutting edges;

Although I have herein shown and described only one form of cablecutting device embodying my invention, it is to be understood thatvarious changes and modifications may be made herein without .de-

parting from the spirit of the invention and the spirit and scope of theappended'claims.

What I claimis:

stationary jaw, a blade secured within the jaw, a frame secured to thejaw, a movable jaw slidably fitted within. the frame, a movable. bladecar'riedby the movable jaw, a spindle rotatably mounted in the frame androtatably connected to the movable jaw, and a presser member slidablyfitted within the frame and 'threadedly engaging said spindle 1. Acablencutting device comprising, a

in such manner that when the spindle is rotated inone'direction thepresser member is moved into engagement with-the frame so that uponcontinued-rotation of the spindle the movable blade is moved in thedirection of thestationary blade. 7

2. A .cable cutting device comprising, a base,'a stationary jaw securedto the base,a

frame securedtothestationar 'aw a blade secured within the stationaryjaw, a movable jaw slidably fitted within the frame, a

movable blade secured within the movable jaw, a screw-threaded-spindlerotatably connected to the movable jaw and extending through said frame,an anvil carried by the upper end of the spindl'e, and a pre'sser memberslidably fitted within the frame and threadedly engaging said spindlefor the purpose described.

3. A cable cutting device comprising, a

base, a stationary jaw secured to the base, a 7

jaw, a screw threaded spindle rotatably connected to the movable jaw andextending through said. frame, an anvll carried by the upper-end of thespindle, and a presser member slidably fitted within the frame and'threadedly engaging said spindle, said blades being formed with IV-shaped' recesses, and

cutting edges formed on the walls of said THOMAS-wuss

